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DIDS-402-2AM13
b.
Locate cursor video control R-19 on video amplifier A8 (see
figure 1-7). Slowly turn the control clockwise until a clearly
defined cursor character is visible on the screen.
c.
Move the cursor to numerous other positions on the screen and
examine cursor definition.
Readjust R-l9 as necessary.
2 - 3. 3.4 Monoscope Deflection Amplifie r A3
The monoscope deflection amplifier (see figure 2-4) should be adjusted
only when anyone of the following conditions exists: .
a.
Scan lines are not approximately 0.12 inch high
b.
Upper case alphabetical characters are not 70 percent of frame
height
c.
Displayed characters are uneven, either horizontally or vertically
d.
Displayed characters are blurred or appear as double images
e.
Displayed characters are not centered in their frames (upper case
alphabet only)
When any of the. above conditions exist and cannot be corrected by adjusting
the CRT FOCUS or MONO FOCUS controls, perform the following adjustments.
(Note that many of the controls interact, hence, some adjustment may have to be
repeated in order to achieve optimum alignment.)
a.
In the center of the screen on the first line, type in the following
characters:
HOHOHOHOHOHO
b.
In the center of the screen on the second line, type in the following
characters:
t$t$t$t $t $
c.
In the center of the screen on the third line, type in the following
characters:
we ruoa s zxcvnm
d.
In the center of the screen on the fourth line, type in the following
characters:
gypjg
2-8
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